Question

9. In amonohybrid cross between tall pea plants(IT) and short pea plant(tt), a scientist
observed only tall pea plats([T) in the F1 generation. However, on selfpollinating the F1
generation pea plants, he obtained both tall and short plants in F2 generation. On the
basis of the above observations, can the scientist arrive at a law? If yes, explain the law.
If no, give justification of your answer.​

Answer 1

Answer:

yes the scientist can arrive at 2 laws which are as follows :

1)LAW OF DOMINANCE : in a monohybrid cross both the alleles are present in F1 gen but only one of them expresses itself . The one which expresses itself is called a dominant allele and the which remains hidden is called recessive .

2)LAW OF SEGREGATION :during gamete formation ,the pair of alleles present in the diploid parent cell separates and only one of them enters the gamete . Thus gametes are pure and haploid .

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